BATTERY MODULE, BATTERY PACK INCLUDING BATTERY MODULE, AND VEHICLE INCLUDING BATTERY PACK

A battery module includes: a plurality of battery cells disposed in a set direction inside a module housing; a first coolant inlet formed at a first side of the module housing; at least one cooling flow path fluidly connected to the first coolant inlet and formed between the plurality of battery cells adjacent to each other; a first coolant outlet formed at a second side of the module housing and fluidly connected to the first coolant inlet; a second coolant inlet formed at the second side of the module housing; and a second coolant outlet fluidly connected to the at least one cooling flow path and the second coolant inlet and formed at the first side of the module housing.